Influence of the crystalline structure of ZrO2 on the activity of Cu/ZrO2 catalysts on the water gas shift reaction

Gonzalo Águila; Sichem Guerrero; Paulo Araya

doi:10.1016/j.catcom.2008.07.011

Influence of the crystalline structure of ZrO₂ on the activity of Cu/ZrO₂ catalysts on the water gas shift reaction

Gonzalo Águila, Sichem Guerrero, Paulo Araya^*

^*Autor correspondiente de este trabajo

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

53 Citas (Scopus)

Resumen

The structure sensitivity of copper catalysts supported on monoclinic and tetragonal ZrO2 was studied on the water gas shift (WGS) reaction. The results show that the activity of copper supported on tetragonal ZrO2 is much higher than when supported on monoclinic ZrO2. The obtained results favour an associative mechanism, which considers the formation of formate species on the surface of ZrO2. The differences on the observed WGS activity are attributed to the stability of adsorbed formates on the different ZrO2 polymorphs. It was found that the active Cu species for the WGS reaction is the bulk CuO.

Idioma original	Inglés
Páginas (desde-hasta)	2550-2554
Número de páginas	5
Publicación	Catalysis Communications
Volumen	9
N.º	15
DOI	https://doi.org/10.1016/j.catcom.2008.07.011
Estado	Publicada - 20 sep. 2008

Palabras clave

Catalysis

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title = "Influence of the crystalline structure of ZrO2 on the activity of Cu/ZrO2 catalysts on the water gas shift reaction",

abstract = "The structure sensitivity of copper catalysts supported on monoclinic and tetragonal ZrO2 was studied on the water gas shift (WGS) reaction. The results show that the activity of copper supported on tetragonal ZrO2 is much higher than when supported on monoclinic ZrO2. The obtained results favour an associative mechanism, which considers the formation of formate species on the surface of ZrO2. The differences on the observed WGS activity are attributed to the stability of adsorbed formates on the different ZrO2 polymorphs. It was found that the active Cu species for the WGS reaction is the bulk CuO.",

keywords = "Catalysis, Catalysis, Catalysts, Copper",

author = "Gonzalo {\'A}guila and Sichem Guerrero and Paulo Araya",

note = "Funding Information: The funding provided by Fondecyt Project 1070961, and the kindly donation of hydrous zirconia from MEI Chemical Corporation, are gratefully acknowledged.",

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TY - JOUR

T1 - Influence of the crystalline structure of ZrO2 on the activity of Cu/ZrO2 catalysts on the water gas shift reaction

AU - Águila, Gonzalo

AU - Guerrero, Sichem

AU - Araya, Paulo

N1 - Funding Information: The funding provided by Fondecyt Project 1070961, and the kindly donation of hydrous zirconia from MEI Chemical Corporation, are gratefully acknowledged.

PY - 2008/9/20

Y1 - 2008/9/20

N2 - The structure sensitivity of copper catalysts supported on monoclinic and tetragonal ZrO2 was studied on the water gas shift (WGS) reaction. The results show that the activity of copper supported on tetragonal ZrO2 is much higher than when supported on monoclinic ZrO2. The obtained results favour an associative mechanism, which considers the formation of formate species on the surface of ZrO2. The differences on the observed WGS activity are attributed to the stability of adsorbed formates on the different ZrO2 polymorphs. It was found that the active Cu species for the WGS reaction is the bulk CuO.

AB - The structure sensitivity of copper catalysts supported on monoclinic and tetragonal ZrO2 was studied on the water gas shift (WGS) reaction. The results show that the activity of copper supported on tetragonal ZrO2 is much higher than when supported on monoclinic ZrO2. The obtained results favour an associative mechanism, which considers the formation of formate species on the surface of ZrO2. The differences on the observed WGS activity are attributed to the stability of adsorbed formates on the different ZrO2 polymorphs. It was found that the active Cu species for the WGS reaction is the bulk CuO.

KW - Catalysis

KW - Catalysts

KW - Copper

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